I wouldn't call this toxic in the least. There is no name calling or childish behavior. I would just call it debating.

I have a coworker that is jealous of me and my boss because we go at it, but we both know it isn't personal. It is about making the right call on a project. We each think we are right and just trying to make our point

So I think this thread is just more intense but there is no ill will